android-如何在片段中创建editText

我想在片段中创建可编辑的文本字段,直到关闭或停止应用程序后才能保存.但是,与notatki返回相符的地方出了问题；我已经有这个了：

public class DetailFragment2 extends Fragment {

    private EditText notatki;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.e("Test", "hello");


    }     
    @SuppressLint("SimpleDateFormat")
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup parent,
            Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.details2, parent, false);
        notatki = (EditText) view.findViewById(R.id.editText1);
        SharedPreferences settings = this.getActivity().getSharedPreferences("PREFS", 0);
        notatki.setText(settings.getString("value", ""));
        return view;
    }  
    @Override
    public void onStop( ){
        super.onStop();
        if(notatki.getText() != null) {
            SharedPreferences settings = this.getActivity().getSharedPreferences("PREFS", 0);
            SharedPreferences.Editor editor = settings.edit();
            editor.putString("value", notatki.getText().toString());
            editor.commit();
        }
    }
}

当我改变返回notatki;返回视图；当我想保存editText的内容时,它一直工作到应用程序停止,但它并没有保存任何内容.

解决方法:

改成

private EditText notatki;
@SuppressLint("SimpleDateFormat")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup parent,
        Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.details2, parent, false);
        notatki = (EditText) view.findViewById(R.id.editText1);
        SharedPreferences settings = this.getActivity().getSharedPreferences("PREFS", 0);
        notatki.setText(settings.getString("value", ""));

  return view; // return view here instead of notaki
}   

您已经声明EditText为类成员

 private EditText notatki;

因此,只需在onCreateView中对其进行初始化.